document.write( "Question 41762: how do i work out this equation?
\n" ); document.write( "60=[400/(1+r)^3]
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Algebra.Com's Answer #26946 by psbhowmick(878)\"\" \"About 
You can put this solution on YOUR website!
\"60+=+400%2F%281%2Br%29%5E3\"
\n" ); document.write( "or \"%281+%2B+r%29%5E3+=+400%2F60+=+20%2F3\"
\n" ); document.write( "or \"%281%2Br%29+=+%2820%2F3%29%5E%281%2F3%29+=+1.8821\"
\n" ); document.write( "or r = 1.8821 - 1 = 0.8821\r
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\n" ); document.write( "\n" ); document.write( "As simple as that!
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